2Pcs 20mm ZWB3 Ultraviolet Wavelength Filter Glass Uv Pass Filter

Description:Due to its selective absorption in visible wavelength range, color glass filter will exhibit various color depending the glass type. Color glass filter provides an economical filter for various applications. Optical glass filters are widely used in safetyglasses, industrial measurement, regulation technology and environment protection. Through ultraviolet black glass has a good UV penetration, which at long wave, short wave their models were ZWB1, ZWB2, ZWB3 (254nm 310nm 365nm), can filter out (absorb) visible light. Mainly used for geological surveying, nondestructive testing, medical analytical instruments, UV light source filter.Specification:Material: PMMAColor: BlackDiameter: 20mmThickness: 2mmAbout the Spectrogram, please see the line ZWB3 in the picture.Package Included:2 x ZWB3 Ultraviolet Filter GlassMore Details: